Verse 32

32.  Neither destruction,  nor again origination;   neither one bound down to this samsara,  nor again aspirant or,  one working for salvation;   neither one desirous of salvation,  nor again one emancipated thus is this highest truth.

"Neither destruction,  nor again origination;"

The eternally existing has no beginning or end of course.

"neither one bound down to this samsara,  nor again aspirant or,  one working for salvation"

The eternally existing singularity cannot be bound down,  aspire to,  or work towards any other.  Due to the Absolute singularity of existence there exists no  "other"  to cause change.

"neither one desirous of salvation,  nor again one emancipated"

The eternal singularity of Existence is by definition all things.  Therefore the Absolute is immutable,  without desire,   and eternally free from any other.

"thus is this highest truth"

The highest truth,  which the wise have ascertained,  is the Absolute singularity of existence.
The above statements are merely the logical truth of this Absolute Singularity.

This Absolute Self Alone exists is the meaning of this verse.  Existing Alone means a Singularity.
An existing Singularity has no birth or death   (origination or destruction)  Having no birth or death means eternal existence which means being immutable,  unchanging.  Unchanging means unaffected by Samsara.
An existing Singularity being Absolute and complete has no desires.  This Absolute Self does not need,  or aspire to,  or desire,  Salvation or emancipation.  In truth,  as stated in all the Upanishads,  This Absolute Self Alone Exists so all other considerations such as dreaming,  waking and so forth have no true existence,  they are all the delusion of Maya.